Intermec EasyCoder 4420, User Manual

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4420 and 4440 Bar Code Label Printer User’s Manual
3-12
Cleaning the Label Sensors
Two label sensors on the printer require regular cleaning:
•
Label mark
•
Label gap
To clean the label sensors
1. Turn off the printer and remove the power cord.
2. Remove the media cover.
3. Disengage the printhead by rotating the head lift lever clockwise until the
printhead releases.
4. Remove the media and ribbon (if necessary).
5. Clean label mark sensor with a cotton swab moistened with isopropyl
alcohol.
6. Pull down on the lower media guide to expose the label gap sensor. Using a
cleaning brush or vacuum, remove all debris and dust from the label gap
sensor.
7. Clean the upper and lower label gap sensor with a cotton swab and alcohol.
8. Replace the media and ribbon.
9. Engage the printhead by rotating the head lift lever counterclockwise until
it locks in place.
10. If you are finished cleaning, replace the media cover.